Our first case for consideration is the expression for the virasoro block derived by monodromy method in [1]}. We further assume that the dimension of the exchanged operator, \(\Delta _{p}\)  does not scale with \(c\)  and \(\Delta _{p}\ll 1\) .
\(\left\langle \mathcal {O}(1)\mathcal {O}(\infty )\chi (0)\chi (x)\right\rangle =(1-x)^{-h_{\chi }(1-\alpha _{\mathcal {O}})}\left(\frac{1-(1-x)^{\alpha _{\mathcal {O}}}}{\alpha _{\mathcal {O}}}\right)^{(h_{p}-2h_{\chi })} \left(\frac{1+(1-x)^{\alpha _{\mathcal {O}}/2}}{2}\right)^{-2h_{p}}\) 
